Perhaps you should try some spelling variations:
nhiet nang » nhiet dong, viet nang, nhieu tang
chieu sang » chieu sach, chieu xanh, hieu lang
cong dung » cuong dung, cong luong, thong dung
doanh cao » doanh co, doanh bao, doanh cho
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((nhiet nang) or (chieu sang)) - canh tranh va thong ((cong dung) OR (cong dong)) doanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhiet nang) OR (chieu sang)) - canh tranh va thong ((cong dung) OR (cong dong)) doanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhiet nang) or (chieu sang)) - canh tranh va thong ((cong dung) OR (cong dong)) doanh cao".
• Adding a wildcard symbol may retrieve word variants: ho ((nhiet nang) or (chieu sang)) - canh tranh va thong ((cong dung) OR (cong dong)) doanh cao*.